Skype was named as the top freemium iPad application, ahead of The Weather Channel, Netflix, Angry Birds HD Free and Amazon's Kindle software.

It was previously announced that gaming apps Infinity Blade 2, Badland, Superbrothers: Sword and Sworcery EP, Where's my Water? and Tiny Wings will be available for free for a limited time to mark the App Store's anniversary.

Non-gaming apps including Traktor DJ, Day One, Over, and Barefoot World Atlas are also free for a limited time.